All Balls Racing 98-01 Yamaha YFM600 Grizzly Air Cut Off Valve Rebuild Kit 2013-porsche-cayenne-gts-esi2134826 this system eliminates factory mufflers

this system eliminates factory mufflers

ACT's 4-pad spring-centered race disc features a spring-center construction to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions

5" Center Outlet 4

The kit comes pre-set for original ride height and damping while also including a spanner wrench to change spring pre-load and spring crossover stop nuts to allow for fine tuning

All Balls Racing 98-01 Yamaha YFM600 Grizzly Air Cut Off Valve Rebuild Kit 2013-porsche-cayenne-gts-esi2134826 this system eliminates factory mufflersKit includes all necessary components needed to rebuild the air cut off valve Kit includes all necessary components needed to rebuild the air cut off valve